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汽轮机组的状态是指与汽轮机、凝汽器和回热系统的参数对应的运行状态,汽轮机组的状态重构是指在给定的机组负荷与环境温度等外部条件下,上述主辅机设备的运行状态(或者参数)的响应规律。文中采用机理建模与数据驱动建模相结合的混合建模方法,基于设备结构参数和典型工况汽轮机组状态数据样本,研究了汽轮机组的状态重构方法,建立了汽轮机组的状态重构模型,算例验证了重构方法与模型的有效性,为汽轮机状态评估及其滑压优化奠定了基础。
Turbine state refers to the steam turbine, condenser and regenerative system parameters corresponding to the operational status of the turbine unit state reconstruction refers to the given unit load and ambient temperature and other external conditions, the main and auxiliary equipment The operating status (or parameters) of the response law. In this paper, a hybrid modeling method based on mechanism modeling and data-driven modeling is adopted. Based on the structural parameters of the equipment and the statistic data of typical working conditions of steam turbine, the state reconstruction method of steam turbine is studied and the state reconstruction of steam turbine is established. The model and the example validate the validity of the reconstruction method and the model, which lays the foundation for the turbine condition assessment and its sliding pressure optimization.